You know that 15% of a number n is 12. how can you use this to find 30% of n? 45% of n? explain

What is not true about kl and mn? what is mn? (show )

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Complete the equation of the live through (-1,6) (7,-2)